> His findings took him by surprise. Although the Hadza people are far more active than the average Westerner, walking miles every day, they burned no more calories than we do – around 3,000 per day.

That’s pretty vague. Walking 2 miles in flat terrain would meet that description, and I would hardly categorize that as ‘exercise’. I presume that is significantly less than what’s implied here, but I wish they would have elaborated a little more than that